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Biology, 21.06.2019 22:10
What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?
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Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
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Biology, 22.06.2019 04:00
The tubes transporting minerals and water upward are called ?
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Biology, 22.06.2019 10:40
Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above
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The transport system that moves ribosomes around the cell throughout the cytoplasm...
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